Discover the most common mistakes in the use of lubricants, a vital element for the proper functioning of machines and the longevity of industrial equipment. As 2025 sees increased sophistication in mechanical technologies and a refined demand for maintenance, understanding the pitfalls related to lubrication is a major challenge. Between poor product selection, inappropriate quantities, or poorly thought-out maintenance practices, the consequences can be serious: accelerated wear, costly breakdowns, and prolonged business interruptions. This article explores frequently made mistakes in depth, illustrated with concrete examples and supported by practical advice to optimize your interventions and preserve your investments. Do not under- or over-lubricate bearings
- Lubricate according to actual conditions, not a fixed schedule
- Use inappropriate or poor-quality lubricants
- Manage contamination and extreme temperatures
- Maintenance planning and the importance of lubricant labeling
- FAQs on common lubricant mistakes
- Do not under- or over-lubricate: the essential balance for durable bearings
In modern industrial environments, bearing lubrication is a strategic step. Yet, one of the most common mistakes is applying either too little or too much grease or oil. These two extremes lead to opposite, equally damaging consequences.
The under-lubrication trap
Too little lubricant is not enough to create an adequate protective layer between moving metal surfaces. As a result, friction increases, causing premature bearing wear. This abrasion accelerates their degradation, increasing the risk of failure, which can lead to costly production downtime.
Recent studies show that under-lubrication can reduce bearing durability by up to 40%. For example, an automotive assembly line equipped with improperly lubricated bearings can lead to increased breakdowns and delayed production schedules. This situation also increases costs for spare parts and labor required for repairs.
Consequences of Over-Lubrication
Conversely, excessive grease application causes internal pressure buildup and increased friction. This, in turn, generates overheating, which can alter the chemical properties of the lubricant. This phenomenon is often observed in workshops that follow a rigid lubrication schedule without taking into account the actual needs of the equipment. For example, a machine equipped with overgreased bearings will develop abnormally high temperatures, which promotes premature degradation of seals and the risk of leakage. In the long term, this can lead to cross-contamination and a vicious cycle of failures.
Methods for determining the ideal amount of lubricant
Best practice relies on accurate friction measurement using modern technologies, such as ultrasound. These devices provide factual and measurable feedback, unlike simple listening tests, which remain subjective.
Gradual and controlled addition of grease, one batch at a time
Continuous monitoring of decibel levels to identify the optimal point
- Immediate interruption as soon as a slight increase is detected, indicating that absorption capacity has been reached
- By incorporating these types of practices, manufacturers significantly reduce the risk of costly errors and optimize the performance of their bearings.
- Lubrication error
Main consequence
| Recommended solutions | Under-lubrication | Premature wear, excessive friction |
|---|---|---|
| Ultrasonic monitoring, compliance with OEM quantities | Over-lubrication | Overheating, seal degradation |
| Progressive application, digital noise measurement | Discover our selection of high-quality lubricants, designed to enhance your intimate experiences and ensure optimal comfort. Explore the different formulas adapted to your needs and enjoy a sensation of smoothness and pleasure. Lubricate Based on Actual Conditions: Abandoning the Strict Schedule for Smart Maintenance | Technical managers often adopt a fixed schedule, such as weekly or monthly lubrication, regardless of the actual condition of components. This method, while seemingly simple, can be counterproductive and ineffective. |
Following a schedule without considering operating conditions poses two major risks:
Unnecessary saturation of bearings with excess grease
Insufficient lubrication during periods of intensive activity
These fixed models do not take into account essential variables such as load, ambient temperature, or stop/start cycles. The result? Inadequate lubrication that can accelerate wear or cause unexpected breakdowns.
- Advanced Methods for Lean Maintenance
- The evolution of sensors and diagnostic tools, particularly the use of digital ultrasound with decibel indicators, is revolutionizing maintenance. These tools provide objective data on the actual state of lubrication:
Effective measurement of friction changes in real time
Precise identification of the ideal time to relubricate
Elimination of excessive or unnecessary actions
- In addition to this technological approach, operator training plays a key role: passively listening to equipment without the right tools remains a source of often fatal error. Traditional Method
- Main Limit
- Recommended Method
Lubrication according to schedule (e.g., weekly)
| Rigid approach, risk of quantity error | Conditional lubrication based on ultrasonic monitoring | Listening test to assess condition |
|---|---|---|
| Subjective, unreliable | Digital ultrasonic devices with decibel indicators | https://www.youtube.com/watch?v=RBX07FzrZQs |
| The consequences of choosing the wrong lubricant: a common and costly mistake | The world of lubrication in 2025 is characterized by a wide variety of available products, from high-end synthetic oils to specialized greases. Choosing the wrong product has a direct impact on the performance, durability, and overall cost of a mechanical installation. | Why is lubricant quality crucial? Well-known manufacturers such as Castrol, Total, Motul, Valvoline, elf, Mopar, Liqui Moly, Shell, BP, and Ravenol offer formulations tailored to various industrial requirements, including wear resistance, anti-corrosion properties, thermal efficiency, and protection against contamination. |
Risks of Poor Selection
Premature degradation of mechanical components
Increased risk of corrosion and wear
Unplanned downtime and costly repairs Contamination of finished products in food or pharmaceutical applicationsConsulting OEM recommendations to ensure lubricant compatibility with the equipment is therefore essential. Furthermore, some industries require lubricants with specific standards, such as NSF certifications for the food industry. Lubricant Type Recommended ApplicationKey Benefit Risk in the Event of ErrorPremium Synthetic Oil (e.g., Castrol) High-performance, high-temperature machineryExcellent thermal stability, extended service life Rapid degradation, frequent breakdownsStandard Grease (e.g., Shell, Total) General-purpose heavy equipmentPressure resistance, corrosion protection Overheating, rapid wear in intensive useFood-grade lubricants (e.g., NSF-certified Liqui Moly) Food and pharmaceutical industriesSafety, regulatory compliance Health risks, product recalls To further understand the issues and choose the right lubricant, consult this guide on common lubricant mistakes .
Discover our range of high-quality lubricants, designed to optimize the performance of your machines and ensure smooth operation. Whether for industrial or domestic applications, our lubricants offer protection and longevity. Choose the best one for your needs.
Contamination Control and Adaptation to Extreme Temperatures: Avoiding Major Pitfalls
- Beyond proper application and the right product, contaminant management and consideration of thermal variations are fundamental.
- Consequences of Contaminants in Lubricants
- Solid particles, debris, water, or air can reduce the effectiveness of lubricants, causing accelerated wear and sudden failures. For example, a food processing plant experienced a technical shutdown after water contaminated its oils, resulting in high replacement and production shutdown costs.
- For these reasons, regular testing is essential to assess the quality of the oils and greases used. Specific additives found in certain branded products such as BP or Ravenol also help combat oxidation and the formation of unwanted deposits, extending the lubricant’s lifespan.
Adaptation to extreme temperatures
| Lubricant viscosity is affected by temperature. In cold conditions, an overly viscous oil thickens and circulates poorly, reducing its ability to lubricate effectively. Conversely, in very hot conditions, some greases can liquefy too quickly, losing their protective effectiveness. | Choose lubricants with the correct viscosity index (VI) | Prefer formulations with stabilizing additives | Regularly monitor the operating temperature of your equipment |
|---|---|---|---|
| Factor | Effect on lubrication | Recommended solution | Water contamination |
| Loss of efficiency, accelerated corrosion | Quality testing, lubricants with anti-water additives (e.g., BP) | Very cold temperatures | Lubricant too thick, poor circulation |
| Suitable low-viscosity lubricants, high VI index | High temperatures | Loss of protective film, possible overheating | High thermal stability synthetic lubricants |
https://www.youtube.com/watch?v=0gUxyaKfec4 Rigorous maintenance planning and the importance of labeling in lubricant managementBeyond materials and techniques, lubricant inventory management is often overlooked, even though its organization can make a big difference.
Emergency interventions can cost up to seven times more than planned preventive actions. Major causes include insufficient, excessive, or inappropriate lubrication, as well as uncontrolled contamination. Adopting a preventive maintenance program based on frequent diagnostics reduces unplanned downtime and optimizes performance.
Clear labeling of lubricant products, a safety asset
Each container must be stored away from moisture and heat sources, with precise labeling indicating the type of product, its expiration date, and its intended use according to classification. The use of color-coding systems can facilitate rapid recognition while preventing dangerous mix-ups.
Avoid accidental mix-ups by properly marking cans and containers.
Comply with standards for food-grade lubricants (NSF certification) in the relevant industries.
Use products according to the FIFO (first in, first out) method to limit aging.
Regularly consulting the manufacturer’s documentation also allows you to verify lubricant compatibility and adapt storage conditions, both of which are rare but crucial to consider.
- Practical
- Risks associated with its absence
- Measures to adopt
| Preventive planning | High emergency response costs | Regular monitoring using measuring tools (ultrasound, tests) |
|---|---|---|
| Clear labeling | Confusion, cross-contamination | Complete labeling system with date and contents |
| Appropriate storage | Deterioration, safety risks | Storage in a cool, dry place, away from flammable materials |
| FAQ: Frequently asked questions about lubrication errors to avoid | What happens if I under-lubricate a bearing? | Insufficient lubrication leads to increased friction, which accelerates wear and can cause premature failure, impacting production and generating high repair costs. |
How can you recognize an unsuitable lubricant?
Symptoms include rapid wear, frequent interruptions, overheating, and even product contamination when used in the food industry. It is essential to follow OEM recommendations and choose recognized brands like Castrol or Shell.
How can you prevent lubricant contamination?
Through careful storage, clear labeling, regular product testing, and the use of lubricants with anti-contamination and antioxidant additives available from Total or Liqui Moly.
How important is preventive maintenance for lubrication?
It allows you to anticipate needs, precisely adjust quantities and avoid high costs related to unplanned breakdowns. The use of digital ultrasonic tools is strongly recommended.
